Coastal and Marine Impacts from Imelda and Humberto as Both Track Away from the Southeast U.S.

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine and rip current conditions to the east coast of Florida and Georgia today, spreading north along much of the east coast of the U.S. this week. Heavy rainfall north and west of Imelda falling across coastal Florida and Georgia into the Carolinas could cause isolated flash and urban flooding through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

Lat: 44.05°NLon: 103.05°WElev: 3202ft.

Fair

90°F

32°C

Humidity 23%
Wind Speed S 14 mph
Barometer 29.94 in (1011.1 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 29 Sep 2:52 pm MDT
Extended Forecast for

New Underwood SD

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Breezy, with a south wind 13 to 20 mph, with gusts as high as 32 mph.

    High: 91 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59. South wind 11 to 17 mph, with gusts as high as 28 mph.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 85. Southwest wind 7 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. North wind 5 to 7 mph becoming south after midnight.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. South wind 7 to 13 mph, with gusts as high as 24 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. Southwest wind 8 to 13 mph becoming northwest in the evening. Winds could gust as high as 23 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77. North wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 57. South wind 13 to 15 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 91. Breezy, with a south wind 13 to 20 mph, with gusts as high as 32 mph.
Tuesday Night
Partly cloudy, with a low around 59. South wind 11 to 17 mph, with gusts as high as 28 mph.
Wednesday
Sunny, with a high near 85. Southwest wind 7 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 54. North wind 5 to 7 mph becoming south after midnight.
Thursday
Sunny, with a high near 90. South wind 7 to 13 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 55. Southwest wind 8 to 13 mph becoming northwest in the evening. Winds could gust as high as 23 mph.
Friday
Mostly sunny, with a high near 77. North wind 14 to 17 mph, with gusts as high as 26 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 46.
Saturday
A slight chance of showers. Mostly sunny, with a high near 72.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48.
Sunday
A chance of showers. Partly sunny, with a high near 65.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 42.
Monday
A chance of showers. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
New Underwood SD
 44.09°N 102.82°W (Elev. 2894 ft)
1:56 pm MDT Sep 29, 2025
3pm MDT Sep 29, 2025-6pm MDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database